earlier this morning, the civil servicish shug an evacuation. they are seeing some of those tsunami waves come in. still fairly serious situation out here with what may happen in the bays. still going to be a long night tonight. at least a couple of more hours before they consider lowering that advisory. we'll send it back to youm. >> thank you, lara. >>> back out to sam, walk me through the science here, how long could they be on alert in hawaii? >> dan, first of all, as soon as that earthquake happened, knowing that it's 7.7, they did all of the right things. they put the warnings out, thinking that may this would be a bad run of waves. evacuating those lower levels of hawaii were a very good idea. so, you e initially think that first wave would run away from that, remember, this is a subsiding zone, one plate is underneath another plate. a little wave or two and one or two, three, in this case four waves went out and went toward hawaii and down the coast of california as well. now, normally, you would look for the bigger waves and the bigger